7.5

CVE-2026-21888

Exploit

MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer()

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer() accepts 5-byte varints without bounds checks; reliably triggers OOB read / crash when built with ASan. This affects 0.24.6 and earlier.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Emqx ≫ Nanomq Version <= 0.24.6
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.216
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://github.com/nanomq/nanomq/security/advisories/GHSA-cggc-6m7w-j7x5
Vendor Advisory
Exploit
https://github.com/nanomq/nanomq/issues/2192
Issue Tracking